250G Polythene Bags
Clear Poly Bags (4" x 21" / 102 x 533mm) — 250g Grade, 64 Micron
These clear polythene bags are a practical, everyday packaging option when you need a long, slim bag format with a clean presentation. Made from clear polyethylene film, they’re designed to protect products from dust and handling while keeping contents visible for quick identification and attractive display. This listing covers the same bag style across the available pack quantities, making it easy to choose the right volume for your packing bench, retail counter, or production line.
With a 4" x 21" (102 x 533mm) format and a 64 micron (64mu) film thickness, these bags offer a dependable balance of clarity and strength for general-purpose packing. They’re commonly used for longer items and for portioning or packing products where a narrow width and extended length is helpful.
Key Features
Clear presentation:
Transparent film helps you show the product while keeping it protected—ideal for retail, storage, and order picking where fast visual checks matter.
Long, slim bag format:
The extended length is well suited to longer items and grouped components, helping keep products together and reducing the risk of scuffs or contamination during handling.
64 micron film thickness:
A robust everyday thickness that supports routine packing tasks and helps resist tearing during filling and sealing compared with lighter films.
Versatile packing workflow:
Suitable for manual packing, bench packing, and many standard sealing methods used with polythene bags (depending on your equipment and process).
Multiple pack quantities:
Choose the pack size that fits your usage—whether you’re topping up a small packing station or buying in volume for regular dispatch.
- Size: 4" x 21" (102 x 533mm)
- Type: Clear poly / polythene bags
- Thickness: 64 micron (64mu)
- Grade reference: 250g
Typical Uses
- Packaging and protecting long, narrow products
- Keeping components, parts, or kits together for picking and dispatch
- Retail presentation where visibility is important
- General storage and organisation in workshops, warehouses, and back-of-house areas
- Order fulfilment and despatch packing to reduce dust and handling marks
4x21 - 250g Clear Poly Bags (102x533mm - 64mu) — Full Product Guide
Clear polythene bags are one of the most widely used packaging formats because they’re simple, flexible, and cost-effective. This particular size—4" x 21" (102 x 533mm)—is especially useful when you need a narrow bag that still provides generous length. The 64 micron film thickness supports everyday packing tasks where you want a little more durability and confidence during filling, sealing, and handling.
How It Works
These bags provide a protective sleeve around your product. The clear film allows the contents to be identified without opening the bag, which can speed up picking and reduce unnecessary handling. Depending on your packing process, bags can be left open for easy access, folded over, taped, or sealed using appropriate equipment and methods for polythene film.
Materials and Construction
The bags are made from clear polyethylene (polythene) film. Polyethylene is valued in packaging for its flexibility, clarity, and moisture resistance. The film thickness for this product is listed as 64 micron (64mu), which is a commonly specified measure for polythene bag strength and feel.
Because this is a configurable product listing with multiple purchase options, the core bag specification remains the same while pack quantity varies by variant.
Size and Fit Guidance
Nominal size: 4" x 21" (102 x 533mm). When selecting a bag size, consider both the width and the length required for your product. If your item is rigid or has sharp corners, you may need extra width to allow for easy insertion and to reduce stress on the film. For longer items, allow additional length if you plan to fold over the top or apply a closure.
Thickness selection: 64 micron is a solid choice for general packing where you want a more substantial film than very light-duty bags. If your product is heavy, abrasive, or has sharp edges, consider whether a heavier-duty option is required for your application.
Compatibility With Packing Methods
- Manual packing: Suitable for hand filling and bench packing workflows.
- Sealing and closing: Can be closed using common methods used for polythene bags (for example, folding and taping, bag ties, or heat sealing where appropriate to your process and equipment).
- Labelling: Clear film supports external labels for product identification, batch control, or shipping information.
Health and Safety
- Packaging safety: As with all plastic bags, keep away from babies and children to avoid suffocation risk.
- Workplace handling: If using heat sealing equipment, follow your equipment manufacturer’s safety guidance and allow seals to cool before handling.
- Product suitability: Always confirm suitability for your specific product, especially if packing food, chemicals, or items with sharp edges.
Ideal Applications and Use Cases
This long-format clear poly bag is commonly chosen for:
- Retail and display: Presenting products neatly while keeping them protected and visible.
- Warehouse and stock control: Grouping items and keeping parts together for faster picking.
- Workshops and manufacturing: Organising components, assemblies, and spares.
- Fulfilment and despatch: Protecting items from dust and handling marks before they go into an outer carton or mailer.
Maintenance, Cleaning and Care
- Storage: Keep bags in a clean, dry area to maintain clarity and reduce contamination.
- Handling: Avoid contact with sharp edges or abrasive surfaces where possible to reduce punctures and tears.
- Temperature: Store away from excessive heat sources that could affect the film.
Case Study (Typical Workflow Example)
A small fulfilment team uses long clear poly bags to protect items during picking and packing. Products are placed into the bag at the packing bench, a label is applied to the outside for quick identification, and the bagged item is then placed into an outer shipping carton. This approach helps reduce scuffs and keeps multi-part orders organised, while the clear film allows quick visual checks before dispatch.
Who Is It For?
- Retailers who want a clean, visible presentation
- Warehouses and stockrooms needing quick identification and organisation
- Workshops and manufacturers packing parts, kits, or components
- Fulfilment teams looking for a simple protective inner bag
Colours / Features Available
Colour: Clear (transparent) film for easy product visibility.
Sizes Available
This product page is for the 4" x 21" (102 x 533mm) size option. Pack quantities may vary by variant—select the option that best matches your usage and storage needs.